MHQ0402PSA3N1CT000

DC Resistance (DCR):	650 mOhm Max
Height - Seated (Max):	0.009" (0.23mm)
Size / Dimension:	0.016" L x 0.008" W (0.40mm x 0.20mm)
Package / Case:	01005 (0402 Metric)
Mounting Type:	Surface Mount
Inductance Frequency - Test:	500MHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	7GHz
Q @ Freq:	10 @ 500MHz
Series:	MHQ-PSA
Shielding:	Shielded
Current - Saturation:	--
Current Rating:	250mA
Tolerance:	±0.2nH
Inductance:	3.1nH
Material - Core:	Ceramic
Type:	Multilayer
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors: MHQ0402PSA3N1CT000 Application Field and Working PrincipleFixed inductors are devices used in electronic circuits to store magnetic flux or energy. They are used to control the flow of electric current or signal in an alternating current (AC) or DC circuit. They are usually found in power circuits, radio frequency (RF) circuits, and audio circuits, among other situations. The purpose of an inductor is to limit or oppose any change in electrical current in a circuit.The MHQ0402PSA3N1CT000 from Murata is a small, high-flux fixed inductor. This inductor offers high magnetic flux density and low DC resistance and is available from various package configurations. It has an excellent heat dissipation capability and is designed for use in high speed switching applications such as DC-DC converters, motor controls and switch mode power supplies.The MHQ0402PSA3N1CT000 has an inductance value of 18 nH +/-20%. It has a maximum DC current rated at 1.9A and a nominal current of 1.2A. The saturation current rating is 2.5A. The maximum DC resistance is just 0.0089 ohms and the operating temperature is -25 to +85°C. This device operates in a temperature range of -55 to 125°C. Its self-resonance frequency is 5.7GHz and its construction comprises of a monolithic metalized ceramic substrate with a molded thermoplastic case.The working principle of an inductor is that of self-induction. It is a coil of wire that stores energy in an electric field when an alternating current is applied to it. This electric field produces a counter-electromotive force, or "back EMF", which opposes the flow of current. The result is an increase in inductance, which is the measure of the amount of the slowing or opposing force. The greater the inductance, the stronger the back EMF.An inductor works by setting up a magnetic field within its body. When a direct current passes through the inductor, it sets up an opposing magnetic field. This opposing field opposes the flow of current, thus increasing the inductance of the component. Likewise, the application of an alternating current will cause the frequency of the alternating current to be “smoothed out” by the inductor. Ideally, the more current that is applied, the higher the inductance and the smoother the current flow.The MHQ0402PSA3N1CT000 is just one example of a fixed inductor in the Murata product line. It is a great choice for high speed switching applications such as DC-DC converters, motor controls, and switch mode power supplies. It has a wide operating temperature range and its small size allows for great flexibility in design. It also offers a high inductance value and low DC resistance, making it a great choice for applications requiring robust and reliable performance.

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